Customer service

<p>Good day,I went to a Engen garage in Jabulani Soweto to buy goodies , i gave the the cashier a my school card for points and didn't know how to use it what disappointed me is that he short paid me by 10 rand I only realised that when we already left because my husband was running late as he was going to work.I couldn't check because already there was a guy in my back who was buying and was in a hurry, there are two cashiers but one was assisting customers.I'm really disappointed </p>